Definition of "submarine"

[…] a Chorus of Sea-nymphs, who […] arrive, in a winged car, from the submarine palace of their father Oceanus.

1908, Edmund Doidge Anderson Morshead, Four Plays of Aeschylus, Introduction, page xiv

When Peterson saw the unusual pitching motion of Kent Tekulve—the submarine pitcher who threw baseballs as though they were coming right out of the rubber slab on the mound—he was the first of many who tried to change Tekulve's delivery.

2005, John McCollister, Tales from the 1979 Pittsburgh Pirates: Remembering "The Fam-A-Lee", page 109

“We’re really at the point of chicken, where the Fed is trying to ward off inflation without submarining the economy.”

2007 April 13, The Associated Press, “Shares Up as Investors Ponder Retail Data”, in New York Times‎

The second their center snapped the ball, I submarined between the big guy's legs and tackled the halfback.

2003, Homer H. Grantham, Thunder in the Morning: A World War II Memoir, page 1

Ten days later, the full force of what happened crushed me. I submarined into the depths of disillusionment.

2013, Gordon MacDonald, Building Below the Waterline, page 234